Export AuthenticationService to allow for creating custom BaseClient (#34)

Co-authored-by: Andrew McClenaghan <[email protected]>

Author: andymac4182

src/index.ts

@@ -4,6 +4,7 @@ export * from './requestConfig';
 export * from './callback';
 export * from './pagination';
 export * from './utilityTypes';
+export * from './services/authenticationService'
 
 export * as Api from './api';
 export * as Server from './server';